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问题 选择题

地震灾区的灾民用下列几个步骤将河水转化为可饮用水：①用明矾沉降；②消毒杀菌（用漂白粉）；③过滤；④加热煮沸．以下处理顺序合理的是（　　）

A．③、②、①、④

B．③、①、②、④

C．①、③、②、④

D．③、①、④、②

答案

①用明矾沉降，明矾具有吸附水中固体小颗粒的作用，使悬浮水中的小颗粒凝聚成较大颗粒而加快悬浮物的沉降至容器底部，此操作只是把固体颗粒沉降而并未进行彻底分离，在此净化过程中应是最初的阶段；

②消毒杀菌（用漂白粉），使用漂白粉在水中生成氯气杀死水中病菌，此时水中含有少量氯气不能直接饮用，在此过程中不能为最后的净化操作；

③过滤，分离不溶性固体与液体一种方法，可除去水中沉降下来的固体颗粒，因此应排在沉降后；

④加热煮沸，通过加热煮沸，可使水中氯气挥发，并进一步杀菌，经过此步净化后的水达到了饮用标准，为此净化过程的最后步骤．

故选C

填空题

Part 1


·Read the article below and choose the best sentence from the list on the next page to fill each of the gaps.
·For each gap (1-8) mark one letter (A-H) on the Answer Sheet.
·Do not mark any letter twice.

When the Young Take Their Lives


A few weeks ago, I received a particularly disturbing page. "A 22-year-old woman is in the emergency room with a gunshot wound to the head," my chief resident told me. (1) . The woman, a recent college graduate, was starting to show signs of brain death. Over the next several hours, we worked to preserve the life she had tried to throw away.
(2) . In the 30 years from 1950 to 1980, the annual suicide rate among college-age women has almost doubled, from 3.9 deaths per 100,000 to 7.0 per 100,000, while the rate among college-age men has tripled, from 10 per 100,000 to 32 per 100,000 a year. (3) .
Students kill themselves at all times of year, but attempted suicides begin to go up in the fall, according to the National Institute of Mental Health. Often the immediate cause seems to be a recent rejection, disappointment or academic failure.
(4) . Even trained mental-health professionals have made mistakes. But there are warning signs you can watch for in friends and loved ones, such as withdrawing from all social activities, dramatic changes in personality—including suddenly becoming much happier or calmer-significant shifts in sleeping or eating habits and giving away cherished personal items.
(5) . Studies of suicide survivors show that often just five minutes elapse from the time someone thinks about committing suicide until the actual attempt.
Finally, it is OK to come right out and ask friends or family members whether they are thinking of suicide. (6) . Be sure to let them know that they are not alone and that help is available through school counselors and mental-health hot lines, in hospitals and now online.
Through the years, I have treated many patients who have attempted suicide. (7) . Our 22-year-old patient is awake now and even talking a bit. I’m optimistic about her physical recovery but disquieted about her chances overall. (8) . What no one knows is whether we will be able to pick up the pieces one more time.
  • A. I do it with the sincere hope that they will get better
  • B. "Oh, and it looks self-inflicted," he added
  • C. The experts will tell you that having tried to kill herself once, she is at a greater risk of trying again
  • D. This year’s toll for adults aged 19 to 24 is expected to reach 1,000 deaths
  • E. Don’t get fooled into thinking that all people who commit suicide have carefully worked out a plan in advance
  • F. You won’t be giving them any ideas
  • G. Trying to determine whether a young person is suicidal can be difficult
  • H. Her predicament made me wonder, once again, what drives people to suicide and why young people resort to such a desperate measure
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多项选择题

下列合同文本由法律部门专职合同管理员审核（）。

A、使用在法律事务部颁布的合同示范文本上做实质性修改的文本签订合同的

B、双方共同拟订的文本

C、使用对方合同文本签订合同的

D、使用国家示范文本签订合同的
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